Home / 10,354.53-15,531.19-4,115.43

Finding the Fourth Proportional to 10,354.53, 15,531.19 and 4,115.43

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Solution

The fourth proportional to 10,354.53, 15,531.19 and 4,115.43 is: 6,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.53 : 15,531.19 = 4,115.43 : x
  2. Step 2: Convert to fraction form
    10,354.53/15,531.19 = 4,115.43/x
  3. Step 3: Cross multiply
    10,354.53x = 15,531.19 × 4,115.43
  4. Step 4: Simplify right side
    10,354.53x = 63,917,581.80
  5. Step 5: Solve for x
    x = 63,917,581.80/10,354.53
  6. Step 6: Final answer
    x = 6,172.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.